Art of manufacturing sheathing material.



CJIVI. CLARKE.

ART OF MANUFACTURING SHEATHING MATERIAL.

APPLICATION FILED JUNE I9. I9l6.

C. M. CLARKE.

ART OF MANUFACTURING SHEATHING MATERIAL.

APPLICATION FILED JUNE 19. l9lfi.

0G 1 9 1 0O 1 e H H J d at Art H e t an 11 2 SHEETS-SHEET 2.

fiver: c 07". agcizjfawzig wfl m,

Lay/49%,

lit

all

I or CHICAU, ILLINOIS.

AUWURING SHEAIWG} MATERIAL.

naeaaoe.

specification of Letters fatent.

tertal lto. ltldthb.

lb all whom it may concern:

Be it own that l, @nom hf. Creams, a citizen of the United States, residin '1 at Chicago, in the county of Cook and of lllinois,have invented a new and useful Improvement in the Art of Manufacturing Sheathi'n Material, of which the following is a speci cation.

My present invention, which as to certain features thereof is a division of my copending application for United States lLetters Patent, Serial No. 22,443, filed April'lQ, 1915, relates moreparticularly to a method of producing sheathin material, more commonly used for roo ng purpmes and enerally termed prepared roofing, which is armed of a base, or foundation, sheet of felt or other suitable, durable and absorbent material, treated to a suitable material for rendering it waterproof and havin its u per surface coated with an adhesive su stance, such as asphaltum, or the like, and with a surface-coating or particles of any suitable material, as for example crushed stone, slate or other similar material, or sand, or the like, applied to and adheri to the adhesive coating, the surfacing-particles being rovided of different colors or different p ysical characteristics and applied to such positions on the coating that a design is produced thereon.

My object, generally stated, is to provide an improved method whereby sheathing material of the general character above stated and with the surfacing-particles arpre erably with the material of one color or characteristic mer ng into the material adjacent to it and of a different color or characteristic to produce a soft, as distinguished from a sharp, line of demarcation between the diderent'sections of the surfacing form-- an enlarged plansection taken at the'line'fi" on Fig. l and viewed in the direction of the arrow, this section being" taken through the devices for applg the altar particl ranged in substantially the same plane, and

to the asphaltum coating on the foundation sheet, and showing difl'erent portions of the sheet, the separated section of the sheet representing the condition presented by it after the non-adhering particles are removed from the sheet.

Referring to the apparatus illustrated and which is o a very desirable form for pract slng my invention, the general characteristlcsof this apparatus are the same as those of machines now commonly emplo ed for the production of prepared roofin of the variety involving the foundation s set and a surfacing of crushed slate, sand, broken stone or the like, and therefore a diagrammatic representation of the apparatus, excepting as to its novel features, will sufice. ln the apparatus shown the sheet of material, shown as a strip, as for example, of felt, which is to form the foundation sheet of the finished sheathing material, is represented at 3 and, in practice, is provided in a roll as at t, the roll being supported to permitthe sheet to be unwound therefrom, in any suitable manner, as by journaling it on the shaft represented at 5.. The sheet 3 passes over a roll 6 journaled in any suitable manner, thence downwardly into a tank 7 and under rollers 8 and 9 journaled therein near the bottom of the latter, and upwardly over a heated drive roller 10 journaled in the top of the tank and driven in any suitable manner. The tank 7, in accordance with common practice, would contain any suitable waterproofing, readily absorbed liquid, as for example asphaltum, of such character that it will be readily absorbed by the sheet 3. The sheet 3 in passin over the roller 10 passes under the heated rive roller 11 journaled in any suitable manner and driven in any suitable manner, these rollers serving to remove from the sheet 3 the surplus liquid carried up thereby from the tank. The sheet-,3 passes beneath a tank 12 which contains any suitable adhesive waterproof coat- Patented dune lid, lull, 1 dual npplleauon fled hprll 11., law, dental Ito. aa. Divided and this application flied June 19, 1916.

tilt

dli

lib

thereto a coating'of the asphaltum or other material used. From this'point the sheet 3 passes heated squeeze rollers 14 and 15 which operate to spread the asphaltum supplied to the sheet, to produce a uniform coating thereon in accordance with common practice. The sheet 3 then passes under a device for applying to the asphaltum coating on the sheet 3, particles such as crushed stone, slate, sand or other suitable material, which, preferably, together with other articles afterward applied to the ,sheet, orm the surface-coating. This device in the form shown, comprises a hopper 16 supported in any suitable manner to extend above the sheet 3 and of a width substantially equal to the width ofthe said sheet, as shown in Fig. 2. The lower end' of this hopper, which is open, is provided with a pair of inwardly extending flanges 17, which reach short of each other as illustrated and which form guides for a pair of edgewise opposed slides 18 and 19 which lie in the same plane and form a bottom for the hopper 16. These slides 18 and 19 are so constructed that by shifting them relative to each other, material from the hopper 16. willbe caused to be spread upon the upper, coated, surface, of the sheet 3, to form a skeleton design thereon; these slides, to serve this purpose, being preferably each formed at the edge thereof which opposes the other slides, with a series of recesses 20 equidistantly spaced apart, so that when the slides 18 and 19 occupy a certain position relative to each other, as illustrated 'in Fig. 2, the intermediate recesses 20 in the opposed slides will register with each other. Coiiperating with the slides 18 and 19 is mechamsm for reciprocating them in opposite directions, the mechanism shown, and which is merely illustrative of one kind of mechanism which may be employed for this purpose, comp'ris ing a shaft 21 driven in any suitable manner (not shown), and equipped with a crank pin" 22 connected with a rocker-arm 23 by a link 24 pivotally, connected with the pin 22 and with a pin 25 on the arm 23, this arm beipg connected with a shaft 25 supported in journaled position in any suitable way. The arm 23 is provided with extensions 26 and 27 extending at angles theretq and provided with pins 28 and 29, respectively, ar ranged eccentrically of the shaft 25 and at 65,-.opposite sides thereof, these pins forming pivot connections for pitmen 30 and 31 pivotally connected at their other ends to pins 32 and 33 on the ends of thefslides 18 and 19. respectively.

It will be understood from the drawing and the .foregolngdescription that when the shaft 21 is rotated the arm 23 is rocked back and forth, thus causing the slides 18 and 19 to be reciprocated in opposite directions. As the sheet 3 passes along under the hopper naeaeoe 16, the movement of the slides 18 and 19, as stated, will cause material to discharge from the hopper 16 through the recesses 20 onto the asphaltum coating of the sheet 3, to produce the skeleton design substantially as shown in Fig. 2, wherein the bands of surfacing extending obliquely of the sheet 3 and in intersecting relation, are represent ed at 34, and thesections of asphaltum coatingagemaining uncovered being represented at After passing under the hopper 16 and the operating mechanism therefor, just described, the sheet 3 passes beneath a suction device represented at 41, for removing from the sheet 3 excess material deposited thereon from the hopper 16, as stated. These suction means may be of any suitable construction, those illustrated involving a suctionhead 42, which is supported in a manner (not shown), to extend transversely of the sheet 3 and'slightly above the latter, but sufiiciently close thereto to cause the excess surface-coating on the sheet 3 to be removed from the sheet under the action of suction applied to the head through a pipe 43 connecting with the latter and leading to a vacuum pump or any other suitable suctionproducing device (not shown).

er passing beyond the suction device 41, the sheet 3 passes beneath a hopper 36 provided with a discharge slot 37 along its lower edge, the hopper 36 extending practically the entire width of the strip 3 and its outlet 37 extending practically throughout the length of the hopper. This hopper is provided for receiving and spreading the particles of material which are to form the surface-coating of the finished sheathing material, between the bands 34. The sheet .3 in passing under the hopper 36 has spread over its entire surface, the material contained in the hopper 36; and from this hopper the sheet 3 passes under and over pressing and drying or cooling rolls 37 38, 39 and 40, journaled in any suitable manner to rotate. In passing from the roll 37 to the roll 38, all of the non-adhering surfacing material falls from the sheet 3; and during the passage of the sheet along the rolls 37 to 40, inclusive, the surfacing particles which contact with the asphaltum coating are caused to become partially embedded therein and firmly adhere thereto. While surfacing particles are applied to the sheet 3 from the hopper 36 throughout the area of the sheet, the particles supplied from this hopper adhere only to the portions of the asphaltum coating into contact with which these particles are pressed. Thus, the surface-coating of the sheet is caused to present a. design formed of particles of different colors,'or different characteristics, as shown at the section X of the sheet 3, the sections of surfacing thus provided being disposed other color or having tn resented in the drawing by the hands it of this excess material forits 50 into a roll.

if substantially in the same plane thus are inthe nature of inlays, as distinguished from super os surfacing-particles upon a previous y. applied coating of particles of another characteristics, to form a design. The application to the icoatedsheet 3, of particles of difierent colors or having difierent characteristics, by successive steps and in the manner described,

to instead of causingthe sheet to'present sharp lines of demarcation between the sections of coating material formed of particles of different colors or having difi'erent characteristics, causes the lines of demarcation to is soft inasmuch as the material of difierent colors, or characteristics, where they lie adjacent to each other, do not lie wholly at opposite sides of a line between such sections, but particles forming one section partially cover the particles of the adjacent section, at the adacent maral edges of these sections, pro ucing a blending or merging of color along more or less indefinite lines defining these sections, thus producing a design presenting a pleasing appearance to the eye.

, The feature of removing the excess of material applied to the sheet 3 to form the vfirst application of the surface coating, rep- Si, is desirable because, while there is left on the sheet 3 a sumcient mass. of the particles forming the surface-coating, to produce the bands 34, to present the desired color design,

the admixture of surfacing-particles forming the belts 34 in excess of those required to produce the desired edect, with the coating material applied to the sheet through the hopper 36, which would prevent the use original purpose, is prevented, I

it will be understood that in accordance with common practice the sheet 3 beyond the roller it) is engagedby suitable feed it mechanism (not shown) for feeding the sheet 3 along the path hereinbefore described to bring it into operative position relative to the various elements of the apparatus hereinbefore explained, and preferably .d it

it will be readily understood from the foregoing that patterns of many different forms may be produced on the coated sheet 3. The speed at which the mechanism for reciprocating the slides 18 and 19, operates,

relative to the speed at which the sheet 3 travels past the hopper 16, determines the,

angle at which the intersecting bands 3t extend relative to each other and the it straightness of the bands 34 and conse- 'in the latter case it being possible to make a pattern wherein the bands of first applied coating material do not contact with each other. in fact, many other difierent designs may be produced on the sheet 3 by the sub stitution for the particular mechanism shown in Fig. 2 of other coon and wellown mechanical movements, for controlling the operationof the mechanism which discharges the coating material upon the sheet.

at l claim as new and desire to secure by Letters Patent is-' l. The method of producing surfacecoated sheathing material which consists in applying a coating of material to certain portions of an adhesive-coated foundation sheet, removing the excess material from the sheet, and then applying to the unsurfaced portions of the sheet coatingmaterial of a color or characteristics difiering from the first-referred-to coating material.

dill

2. The method of producing surfacei lid sheet, removing the excess coating from the sheet, applying to the unsurfaced portio of the sheet coating material of a color" or characteristics difiering from the first referred to coating material, and pressing into firm engagement with said adhesive coating on said sheet, the coating material contacting therewith.

i. The method of producing secoated sheathing material which consists in applying a coating of material to certainportions of an adhesive-coated foundation sheet to adhere thereto, subjecting the coat ing thus applied to suction action for removing om the sheet the excess of said coating material, then applying to the unsurfaced portions of the sheet coating material'of a color or characteristics difi erin from the first-referred-to coating materia and pressing into firm adhesive coating on said sheet, the coating material contacting therewit 5. The method of producing surfacecoated sheathing material which consists in directing a continuing stream of coating ma terial upon the aesivecoating of an ad hesive-coated foundation sheet to cover l it llld

ltd

gement with said ing to the uncovered portions of said sheet, to adhere to said unsurfaced portions only, coating material of a color or characteristics difl'erin from the first-referred-to coating material.

CECIL M. CLARKE. 

